Metal weather stripping



July 21, 1936- H. A. KAMMERER 2,048,609

METAL WEATHER STRIP? ING Filed DeC. 2l, 1935 Patented July 21, 1936 UNITE-D sTArEs PATENT oFFlce y Harry A. Kammerer, Mount Vernon, N. Y. Y Application December 21,1935, serial No. 55.635

1 Claim.

This invention relates to metal weatherstripping and more particularly to such weatherstripping adapted for use with sliding sash windows of that type in which no weights are employed, the sash being held at different elevations by a friction device, one element of which is carried by the sash and the other by the window frame, and both members being operatively connected at all times in such manner that one of the elements of the friction .device has a frictional sliding union with the other element.

Such friction sliding sash balances are usually set within a recess or groove formed in the vertical edges of the s ash and this leaves very little surface at the edges of the sash for carryingthe usual form of weatherstripping.

One object of the present invention therefore is to provide weatherstripping comprising two interlocking members, one carried by the sash and the other fitted to the sashguide of the window frame, and to so construct such weatherstripping that the sash member will provide a metallic lined recess open atthe front within which the sash balance may be fitted for entire freedom of action, and at the same time so construct the member of the weatherstripping carried by the sash as to insure its permanent installation and an effective sliding air-excluding coupling with the complementary member positioned within the sash guide of the window frame. A further object is to so form both members of the weatherstripping that they shall be secured in place by fastenings extending along a central longitudinal line, thus leaving the lateral edges of both members free, permitting .a limited lateral yielding to the movement of the sash without breaking the air-excluding coupling.

The present invention is shown in the accompanying drawing in which- Fig, 1 shows a broken horizontal sectional view through the sash and frame of a window equipped with the improved weatherstripping;

Fig. 2 shows in perspective the frame member of a section of such weatherstripping;

Fig. 3 shows in perspective a portion of the sash member.

Similar reference characters will be employed throughout the specification and drawing to designate corresponding parts.

In the drawing I indicates the side members of a sliding sash and 2 represents portions of the sides of a window frame provided with the usual vertically extending guides 3 into which the side edges of the sash are tted for vertical sliding movement. Except as hereinafter pointed out,

the window frame and the sash, insofar asA the sliding Vmounting of -the YsashV in the frame is concerned, may be of any usual or ordinary construction. A, In the present instance thel sash I is provided 5 with longitudinally extend-ing? centrally disposed grooves 4 at each 'edge within which the Vfriction balance device 5 operates. The friction balance device shown is of that type comprising a mem; ber onel end of which is permanently connected l0 to'thewindow frame and a member 'l connected at one end permanently to the sash VI, the members l5 and'l having a frictional sliding connection with each other in a manner Wellknown to those skilled in this art.' `In and of itself the friction lo" balance'deviceconstitutes no part of the present invention. I

My improved weatherstripping in. its preferred form constitutes a windowframe member 8 made of some suitable sheet metal and of a'width to fit 2O within the guides 3 of the window frame, and of a length approximately that of the vertical height of the window sash. Preferably the member 8 Vwill be depressed and flattened along its longi-` tudinal medial line, as indicated at 9, thus loring.-A 25 ing the lateral edges IIl into a slightly different plane than the flattened portion 9. The free edges of the member B are bent over forming overlapping langes II arranged parallel to the outer face of the edges Il! and spaced from the body por- 30 tion, and are bent outwardly to form the overlapping langes I 2 forming the grooves or slots I3. The frame member is provided with centrally disposed openings Ill through which the attaching screws I5 may be passed to hold it in position 35 in the guideways 3.

Cooperating with the frame members are sash membess l, one being shown in perspective in Fig. 3 of the drawing. The sash members I6 are provided with a longitudinally extending forward 40 projecting portion Il of a size and shape to fit the grooves or seats l in the edges of the sash I and along each lateral edge I8 fits against the free edge of the sash as indicated, thence are bent inwardly parallel to edges I8 to form the flanges 45 I9 enclosing the slide groove 20. The sash member I6 is provided with holes 2| to receive the attaching screws 22. When the sash members are applied, as shown in the drawing, the bowed projection I'l ts within the grooves 4 of the sash 50 member and the flanges I9 slidably engage with the interlocking anges l2 of the frame member 8, providing a permanent sliding connection, and when employed as shown, excluding the entrance of air at the sides of the sash.v 55

It will be observed that theY lateral bearing surfaces I8 of the sash member I6 overlap the outer edges of the sash member at each side of the groove 4 which receives the projectingY portion l1 Yand is permanently Vsecured theretov to move with the sash While maintaining the interlocking con- Y nection therewith. Y

Y Itrwill be further noted-that the oisetting of the sliding connection between the members with relation to the planeof the central part 9 of the frame member 8 provides a yielding or spring y connection which will be maintained even though aslight lateral displacement of the sash with Y relationfto the .window frame may take place 15VY Y retaining the weather-tight connection of V*the during the raising and lowering of thesashQ-,thus

sash and frame Vat;Y all times. Y Y

InV applying the sash to the frame the sash v 'member I6 is rst connected to the edges of the 20 V- sashby the screws Y22. The members 8 and I6 are then vconnected with each other by interlocking the flanges I2V and I9 as indicatedfinFig. 1. As` thus connected thev sash and theirweatherstripping are inserted in the guides Vil of the Win- Y dow frame lower Vend rests upon Ythe window sill. An fattachingY screw l5 isV inserted' in the lowermost uncovering other openings I4 therein to receive Of course it will be t Vunderstood'thatj' the strip 22 forming part ofthe window frame is removable and held in place by Y The assemblage ofthe weatherstripmembers n Vand the sash preliminarily to fitting into the sash guideslof the Window frame is greatly facilitatedV Y 4o Y Vby the fact that'the interlocking Yilanges between opening of the frame member whereupon Athe sash maybeelevatedto the full extentrrequired, thus other attaching. screws I5.

attaching screws 23, all to facilitate the' adjustment of the'sashfand Weatherstripping' in the guides 3 of the window frame. Y

the frame member and the sash member of the VWeatherstripping-'are arranged parallel to Vthe plane vof such members yor the portions thereof which'bear against the side edges of the sash and n 'Ihe sash is` then elevated.V slightlyV Y andthe frame member 8 is drawn down until itsY the back of the guides of the window frame. This construction insures that the two members of the weatherstripping will be held in coupled engage- Y ment while inserting thesarshrcarrying such members in the Window frame. It will be further noted that as the interlocking flanges of the frame member of the Weatherstripping are'slightly offset with relation to the plane'of the intermediate part Ywhich is secured to the back of thersrash guide, there is a yielding or spring action of the lateral edges of the frame membertending to hold the parallel interlocking flanges coupling the weatherstrip members together always in coupled position and Y permitting v aV limited lateral movement ofthe sash member of the window without any liability of affecting the airV excluding function thereof.r l Y 1 Iclaim: y Y Weatherstripping for sliding `sash windows comprising a sheet metal frame member of ya width corresponding to the widthof the Vsash guide of the window frame and'provvided with a longitudinally lextending medial ,flat attaching portion with the lateral edges in a different plane with relation to the flat attachingportion and provided along its marginal edges with inwardly andA outwardly extending overlapping; flanges spaced from and substantially parallel to the facev of the body portion and to each other, and a sheet metalV sash member having al-longitudinally eX-fo tendingY centrally disposedfprojection to t the` groove in the edge of the sash having an attaching portion alongv its longitudinal medial line only and provided with llaterally extending flanges adapted toV fit against the'edges of the sash-at veach side of the grooveA and provided with anin-V Wardly extending coupling -flange kalong Yeach edge and parallel thereto interlocking with and forming a permanent sliding connection with the overlapping flanges of the Vframe member; said for the groove or recess in the edge of the sash and an open chamber to receive the sash balance.

HARRY VA. VKAMMEREi-t. j

4Q centrally disposedV projection forming Ya lining Y 

